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Glossary
MagicGate
Copyright protection technology that consists of authentication and encryption technology.
Authentication ensures that protected content is transferred only between compliant devices and
media, and that protected content is recorded and transferred in an encrypted format to prevent
unauthorized copying or playback.
Note
is terminology denoting the copyright protection system developed by Sony. It does not
guarantee conversion among other media.
“MagicGate Memory Stick”
A compact Integrated Circuit recording medium “Memory Stick” equipped with “MagicGate”
copyright protection technology.
“Memory Stick”
“Memory Stick” is a portable and compact Integrated Circuit recording medium. There are two
types of “Memory Stick”: “MagicGate Memory Stick” equipped with “MagicGate” copyright
protection technology and a normal “Memory Stick” not equipped with the copyright protection
technology. You can record image files, audio files, and sound files using “Memory Stick”
compatible audio visual devices, or record data from the computer. Data with different formats
can be stored in the same “Memory Stick.” (Please refer to the instruction manuals that come with
the devices to check which format the equipment is able to read.)
For example, you can store image files in the space available on “MagicGate Memory Stick” using
the respective equipment even if there are already audio files in “MagicGate Memory Stick.”
OpenMG
Copyright protection technology that securely manages music content from the EMD/Audio CD
on a personal computer. Application software that is installed on the computer encrypts the
digital music content when recording on the hard drive. This allows you to enjoy music content
on the computer, but prevents unauthorized transmission of this content across a network (or
elsewhere). This PC copyright protection complies with “MagicGate,” and allows you to transfer
digital music content from a PC’s hard drive to a compliant device.
ATRAC3
ATRAC3, which stands for Adaptive Transform Acoustic Coding3, is audio compression
technology that satisfies the demand for high sound quality and high compression rates.
The ATRAC3 compression rate is double that of the Mini Disc, resulting in increased data
capacity for the media.
SDMI
SDMI which stands for Secure Digital Music Initiative, is a forum that consists of over 130
companies in the fields of recorded audio content, computers, and consumer electronics,
dedicated to developing an integrated method of copyright protection technology that can be
used worldwide.
SDMI is working to create a framework for preventing improper usage of audio files and to
promote legal music distribution services. The copyright protection technologies “OpenMG” and
“MagicGate” are based upon the SDMI standard.
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